<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区 -->
    <el-card>
      <!-- 搜索与添加区 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>

      <!-- 用户列表区 -->
      <el-table :data="userlist" style="width: 100%" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column prop="username" label="姓名"></el-table-column>
        <el-table-column prop="email" label="邮箱"></el-table-column>
        <el-table-column prop="mobile" label="电话"></el-table-column>
        <el-table-column prop="role_name" label="角色"></el-table-column>
        <el-table-column prop="mg_state" label="状态" v-slot="scope">
          <!-- 作用域插槽 row代表这一行的数据 -->
          <!-- {{scope.row}} -->
          <el-switch
            v-model="scope.row.mg_state"
            @change="userStateChanged(scope.row)"
          ></el-switch>
        </el-table-column>
        <el-table-column label="操作" v-slot="scope" width="180px">
          <!-- 修改按钮 -->
          <el-button
            type="primary"
            icon="el-icon-edit"
            size="mini"
            @click="showEditDialog(scope.row.id)"
          ></el-button>
          <!-- 删除按钮 -->
          <el-button
            type="danger"
            icon="el-icon-delete"
            size="mini"
            @click="removeUserById(scope.row.id)"
          ></el-button>
          <!-- 分配角色按钮 -->
          <el-tooltip
            effect="dark"
            content="分配角色"
            placement="top"
            :enterable="false"
          >
            <el-button
              type="warning"
              icon="el-icon-setting"
              size="mini"
              @click="setRole(scope.row)"
            ></el-button>
          </el-tooltip>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>

    <!-- 添加用户的对话框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="addDialogClosed"
    >
      <!-- 内容主题区 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户的对话框 -->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClosed"
    >
      <el-form
        :model="editForm"
        :rules="editFormRules"
        ref="editFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 分配角色的对话框 -->
    <el-dialog title="提示" :visible.sync="setRoleDialogVisible" 
    width="50%" @close="setRoleDialogClosed">
      <div>
        <p>当前的用户：{{ userInfo.username }}</p>
        <p>当前的角色：{{ userInfo.role_name }}</p>
        <p>
          分配新角色：
          <el-select v-model="selectedRoleId" 
          placeholder="请选择">
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            >
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo"
          >确 定</el-button
        >
      </span>
    </el-dialog>
  </div>
</template>
<script>
export default {
  data() {
    // 验证邮箱的规则
    let checkEmail = (rule, value, cb) => {
      //验证邮箱的正则表达式
      const regEmail =
        /^[A-Za-z\d]+([-_.][A-Za-z\d]+)*@([A-Za-z\d]+[-.])+[A-Za-z\d]{2,4}$/;
      if (regEmail.test(value)) {
        //合法的邮箱
        return cb();
      } else {
        cb(new Error("请输入合法的邮箱"));
      }
      // console.log(rule);
    };

    //验证的手机号规则
    let checkMobile = (rule, value, cb) => {
      // 验证手机号的正则表达式
      const regMobile = /^[1][3,4,5,7,8][0-9]{9}$/;
      if (regMobile.test(value)) {
        //合法的手机号
        return cb();
      } else {
        cb(new Error("请输入合法的手机号"));
      }
    };

    return {
      //获取用户列表的参数对象
      queryInfo: {
        query: "",
        //当前页数
        pagenum: 1,
        //当前每页显示多少条数据
        pagesize: 2,
      },
      userlist: [],
      total: 0,
      // 控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      // 添加用户的表单数据
      addForm: {
        username: "",
        password: "",
        email: "",
        mobile: "",
      },
      // 添加表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: "请输入用户名", trigger: "blur" },
          {
            min: 3,
            max: 10,
            message: "用户名的长度在3~10个字符之间",
            trigger: "blur",
          },
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          {
            min: 6,
            max: 15,
            message: "用户名的长度在6~15个字符之间",
            trigger: "blur",
          },
        ],
        email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" },
        ],
        mobile: [
          { required: true, message: "请输入手机号", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" },
        ],
      },
      // 控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      // 查询到的用户信息对象
      editForm: {},
      // 修改表单的验证规则对象
      editFormRules: {
        email: [
          { required: true, message: "请输入用户邮箱", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" },
        ],
        mobile: [
          { required: true, message: "请输入用户手机", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" },
        ],
      },
      // 控制分配角色的显示与隐藏
      setRoleDialogVisible: false,
      // 需要被分配角色的用户信息
      userInfo: {},
      // 所有角色的数据列表
      rolesList: [],
      // 已选中的角色id值
      selectedRoleId:[]
    };
  },
  created() {
    this.getUserList();
  },
  methods: {
    getUserList() {
      this.$http
        .get("users", {
          params: this.queryInfo,
        })
        .then((res) => {
          // console.log("q",res.data.data)
          if (res.data.meta.status !== 200) {
            this.$message.error("获取用户列表失败");
          } else {
            this.userlist = res.data.data.users;
            this.total = res.data.data.total;
          }
        });
    },
    //监听pagesize改变的事件
    handleSizeChange(newSize) {
      // console.log(newSize);
      this.queryInfo.pagesize = newSize;
      this.getUserList();
    },
    //监听页码值改变的事件
    handleCurrentChange(newPage) {
      console.log(newPage);
      this.queryInfo.pagenum = newPage;
      this.getUserList();
    },
    //监听switch开关状态的改变
    userStateChanged(userinfo) {
      // console.log(userinfo)
      this.$http
        .put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
        .then((res) => {
          // console.log(res.data.meta.status);
          if (res.data.meta.status !== 200) {
            userinfo.mg_state = !userinfo.mg_state;
            this.$message.error("更新用户状态失败!");
          } else {
            this.$message.success("更新用户状态成功!");
            console.log(userinfo.mg_state);
          }
        });
    },
    //监听添加用户对话框的关闭事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields();
    },
    // 点击按钮添加新用户
    addUser() {
      this.$refs.addFormRef.validate((valid) => {
        if (!valid) return;
        //可以发起添加用户的网络请求
        this.$http.post("users", this.addForm).then((res) => {
          if (res.data.meta.status != 201) {
            this.$message.error("添加用户失败!");
          } else {
            this.$message.success("添加用户成功!");
            // 隐藏添加用户的对话框
            this.addDialogVisible = false;
            // 重新获取用户的列表
            this.getUserList();
          }
        });
      });
    },
    // 展示编辑用户的对话框
    showEditDialog(id) {
      this.$http.get("users/" + id).then((res) => {
        if (res.data.meta.status !== 200) {
          return this.$message.error("查询用户信息失败！");
        } else {
          this.editForm = res.data.data;
          // console.log(res.data.data)
        }
      });
      this.editDialogVisible = true;
      // console.log(id);
    },
    editDialogClosed() {
      this.$refs.editFormRef.resetFields();
    },
    editUserInfo() {
      this.$refs.editFormRef.validate((valid) => {
        // console.log(valid)
        if (!valid) return;
        // 发起修改用户信息的数据请求
        this.$http
          .put(`users/${this.editForm.id}`, {
            email: this.editForm.email,
            mobile: this.editForm.mobile,
          })
          .then((res) => {
            console.log(res.data.meta.status);
            if (res.data.meta.status !== 200) {
              this.$message.error("更新用户信息失败！");
            } else {
              //关闭对话框
              this.editDialogVisible = false;
              // 刷新对话框
              this.getUserList();
              // 提示修改成功
              this.$message.success("更新用户信息成功！");
            }
          });
      });
    },
    // 根据id删除对应的用户信息
    removeUserById(id) {
      // console.log(id);
      // 弹框询问用户是否删除数据
      this.$confirm("此操作将永久删除该用户, 是否继续?", "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning",
      })
        .catch((err) => {
          return err;
          // console.log(err)
        })
        .then((confirmResult) => {
          // 如果确认删除，则返回字符串confirm
          // 如果用户取消了删除，则返回值为字符串cancel
          console.log(confirmResult);
          if (confirmResult !== "confirm") {
            this.$message.info("已经取消删除");
          } else {
            // console.log('确认了删除')
            this.$http.delete(`users/${id}`).then((res) => {
              if (res.data.meta.status !== 200) {
                return this.$message.error("删除用户失败！");
              } else {
                this.$message.success("删除用户成功");
                this.getUserList();
              }
            });
          }
        });
    },
    // 展示分配角色的对话框
    setRole(userInfo) {
      this.userInfo = userInfo;
      // 在展示对话框之前获取所有角色的列表
      this.$http.get("roles").then((res) => {
        console.log(res.data);
        if (res.data.meta.status !== 200) {
          return this.$message.error("获取角色列表失败！");
        } else {
          this.rolesList = res.data.data;
        }
      });
      this.setRoleDialogVisible = true;
    },
    // 点击按钮，分配角色
    saveRoleInfo(){
      if (!this.selectedRoleId) {
        return this.$message.error('请选择一个角色！')
      } else {
        this.$http.put(`users/${this.userInfo.id}/role`,
        {rid:this.selectedRoleId})
        .then((res)=>{
          if (res.data.meta.status !== 200) {
            return this.$message.error('更新角色失败！')
          } else{
            this.$message.success('更新角色成功！')
            this.getUserList()
            this.setRoleDialogVisible = false
          }
        })
      }
    },
    // 监听分配角色的对话框的关闭事件
    setRoleDialogClosed(){
      this.selectedRoleId = ''
      this.userInfo = {}
    }
  },
};
</script>
<style lang="less" scoped>
</style>